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@ 2015-10-22T17:27:26Z

<?php

$data = [
    'existant_key'=>[]
];

foreach($data['non_existant_key'] as &$row)
{
}

print_r($data);

Output
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print_r: documentation ( source)

preferences:dark modelive preview

57.47 ms | 402 KiB | 5 Q